Metal-ligand distances centers

The energy difference between these two sets of orbitals is At (t for tetrahedral). Also, due to the center of gravity condition, the t2 orbitals lie (2/5)At above the unperturbed d orbitals and e orbitals lie (3/5)At below. When the metal ion, the ligands, and the metal-ligand distance are the same for both the octahedral and tetrahedral systems, it can be shown that... 

If a soft potential surface describes the approach of the axial ligand to the transition metal center, then it is not too surprising to see some short axial metal-ligand distances in a couple of instances (as in the example of K2CuF4 in Table VI) where possibly, because of crystal... 

For /—f transitions on a metal ion surrounded by a crystal field with a center of symmetry, pressure again increases the crystal field by decreasing the metal-ligand distance. However the vibrational displacements of the ligand relative to the ion are de-... 

X-ray structural studies of the diamagnetic anion (406) confirm that the Ir(-I) center is in a distorted coordination geometry intermediate between square planar and tetrahedral, with the P donor atoms in a cis position. The metal-ligand bond distances do not show significant changes among (404), (405), and (406). The Ir1/0 and Ir0/(-1) redox couples are measured at easily accessible potentials and are solvent dependent. 

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